Which two options can you use to configure an EIGRP stub router? (Choose two)

'summary-only' is not a standard EIGRP stub configuration keyword; the correct keyword for advertising only summary routes is 'summary'.

The 'receive-only' option, when used with the 'eigrp stub' command, restricts the stub router from sending any EIGRP route advertisements, effectively making it a pure listener and suitable for edge devices.

'external' is an option that allows a stub router to advertise external routes, which goes against the typical behavior of a stub, which is to limit routing information, making it less of a primary stub type.

The 'summary' option, when used with 'eigrp stub', configures the stub router to advertise only summary routes that have been explicitly configured on the stub router itself, preventing the advertisement of connected and redistributed routes.

'totally-stubby' is a concept primarily associated with OSPF, particularly for Not-So-Stubby Areas (NSSA), not a direct keyword for EIGRP stub configuration.

'not-so-stubby' is also a concept associated with OSPF NSSA areas, allowing external routes to be injected into a stub area, and is not a keyword for EIGRP stub configuration.